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TEL:+31102922689. assurance.dnvgl.com C ertificate No: 7071-1998-AQ-RGC-RvA Initial certification date: 28 A pril, 1998 V alid: 29 March, 2018 - 29 March, 2021 This is to certify that the management system of PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z. TEL:+31102922689. assurance.dnvgl.com Appendix to Certificate PolyOne-Shanghai, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z. Park, Pudong, Shanghai, China, 201203 Design and Manufacture of Masterbatch Polyone - Shanghai, China (Tianjin) Branch No. 28#C, Jin Bin Hi-Tech Industrial Park, 156 Nan Hai Road, Tianjin Economic-Technological, Tianjin, China, 300457 Manufacture of Masterbatch

Any translations of this document shall be used for reference only.) 1/2 Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P Bureau Veritas Certification certify that the Quality Management System of the above organisation has been audited and found to be in accordance with the requirements of IATF 16949 - FIRST EDITION and the applicable customer specific requirements SCOPE Design and manufacturing PERMITTED EXCLUSION(S) None PRODUCT(S) DELIVERED colour with additive concentrates for thermoplastic resins and speciality compounds obtained by mixing and extrusion https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English. Any translations of this document shall be used for reference only.) 2/2 Appendix to the Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P REMOTE SUPPORT FUNCTION(S) NAME ADDRESS SCOPE AVIENT LUXEMBOURG 19, Route de bastogne, 9638, Pommerloch - Luxembourg IATF USI: GAZS9A Purchasing, Logistics, Supplier Management PolyOne Europe Logistics 7 Rue bleriot, 4460, Grace-Hollogne - Belgium IATF USI: P4WA4Y Warehousing Polyone Poland Ul. wschdnia 6, 99-300, Kutno - Poland IATF USI: C4W5ZL Logistics https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX 2024-12-13T10:07:11+0100 Authenticity and Integrity

FIBER-LINE™ PERFORMANCE ENHANCING COATINGS PRODUCT SELECTION GUIDE FIBER-LINE™ COATING SELECTION GUIDE COATING Bondcoat™ Adhesion Enhancing Colorcoat™ Fiber Color Packcoat™ Performance Enhancing Protexcoat™ UV Resistant Swellcoat™ Blocker Water Blocking Swellcoat™ Water Absorbing Wearcoat™ High Abrasion Blockcoat™ Anti-Wicking Repelcoat™ Water Repellant Flamecoat™ Flame Resistant FEATURES • Created for applications where an untreated fiber does not have the ability to provide the appropriate amount of bonding characteristics to another material • Provides adhesion to another fiber or substrate without impacting other performance properties • Improves adhesion of the fiber to the resin matrix it is introduced into • Enables industry standard “burst” tests or stringent delamination analysis • Designed to achieve vibrant colors for safety, identification, and aesthetics • Specialized formulas and binders adhere the pigment to the exterior of the individual filaments, while impregnating deep into the fiber bundle • Available by Pantone or RAL number • Compatible with a variety of composite resins including epoxy, polyurethane, and polyethylene • Stronger than solution-dyed fibers • Designed to add lubricity and temperature resistance at the filament level for braided compression packing • Coating at the fiber level versus the finished braid achieves higher % level coating • Fiber level coating extends the life of the braid and reduces required maintenance • Various formulations available • PTFE, silicone, graphite, and mineral oil • Created for high performance fibers that lack inherent ultraviolet (UV) resistance • Coating impregnates the individual fibers with a specialized resin for improved UV protection • Coating enhancements include UV inhibitors, absorbers and stabilizers • Improves the processing of the product via reduced filament snagging and friction • Low level water- blocking finish for any technical fiber or textile substrate • Provides water- blocked strength reinforcements for dry cable designs • Can absorb 5x to 15x its weight in water • Dust-free coating imparts a very soft fiber hand, advantageous to cable, rope, and other textile processes • Patented technology incorporates super absorbent polymer (SAP) suspended in a proprietary resin matrix • Used in the production of ‘dry-dry’ telecommunications, electromechanical, seismic, umbilical and power cables • Can absorb up to 100x its weight in water • Creates a stable gel when exposed to water • Functionally replaces flooding compounds, filling gels, spun SAF yarns, and water blocking tapes • Enables faster, more economical and robust cable manufacturing • Increases durability and abrasion resistance by encapsulating filaments in the fiber bundle • Extends the life of the product by reducing the effects of friction and yarn on yarn abrasion • Protects the fiber from degradation and filamentation • Ideal for high abrasion and high friction applications in a range of fiber constructions and environments • Wicking refers to the tendency of a yarn or other fiber to draw moisture into filaments via capillary action • Coatings designed to prevent moisture from wicking within and between fibers and strands • Protects Wire or Optical Fiber from damaging effects of moisture, which can cause a drop in signal and attenuation • Hydrophobic additives used to promote and enhance water repellancy in industrial applications • Creates a waterproof barrier that prevents moisture from further migration • Applied at various % levels to optimize for water-proof ratings • Designed to inhibit or slow the spread of fire/flame • Coupled to fibers with inherent flame and thermal resistance to boost performance • Added to fibers with weak flame resistance to improve burn rating SUITABLE FIBERS • Technora® Fiber • UHMWPE • Graphite Fiber • PTFE Fiber • Technora® Fiber • PET Polyester (All shrinks) • UHMWPE • Vectran® LCP • Technora® Fiber • PET Polyester (All shrinks) • PET Polyester (All shrinks) • UHMWPE • PET Polyester (All shrinks) • PET Polyester (All shrinks) • Vectran® LCP • PET Polyester (All shrinks) PRODUCTS • Belt & Hose Reinforcement Yarn • Braided compression rings and seals • Valve stem packing • Pump packing • Filler Yarn • Synthetic Wire Rope • Buffer Thread • Filler Yarn • FRP Rod • Synthetic Wire Rope Kevlar® and Nomex® are trademarks of DUPONT SAFETY & CONSTRUCTION, INC. Processing conditions can cause material properties to shift from the values stated in the information. Fiber-Line Performance Enhancing Coatings feature: • 100% water based or non-solvent resin formulations • Carefully selected, regulatory compliant raw materials and chemicals • Custom formulations designed to meet specific application requirements • Formulations designed for compatibility with specific fiber substrates or processing conditions Contact us today to determine the fiber-based solution that is right for your product.

High Strength Synthetic Fibers Outperform Steel Our Products Remove • Weight Steel is heavier than synthetic fibers. HMPE for example, has a specific gravity less than 1 and will float in water. • Corrosion Since our products are non-corrosive, they offer outstanding performance in corrosive environments, including marine and off- shore applications. • Conductivity High-performance synthetic fibers act as a barrier between eletrical components. • Creep When exposed to static long-term loads, synthetic fibers stretch very little. High Strength Synthetic Fibers Outperform Steel Our Products add • Strength On an equivalent weight basis, fibers like Aramid, LCP, and PBO are 5-10 times stronger than steel. • Chemical Resistance High performance fibers resist soiling and the absorption of water, solvents, and other chemicals. • Abrasion Resistance HMPE as a jacketing material, is a great example of the excellent abrasion resistance of high performance fibers. • Fatigue Resistance Aramid Fibers have exceptional bending and tensile fatigue resistance. • Safer Handling Because synthetic fibers are flexible and weigh less than steel, they are easier to work with, lead to fewer weight-related injuries and completely eliminates fish hooks. • Dampening Synthetic fiber cables have excellent shock absorption and load dampening properties.

A fresh look at material options helps align key properties with optimal performance for today’s vehicles. Known for offering tight seals and reducing vibration and noise, certain thermoplastic elastomers (TPEs), like OnFlex™ grades, may be better suited for your particular application than the historically incumbent materials, like general purpose TPEs, thermoplastic vulcanizates (TPV), and thermoplastic polyolefins (TPO). Processing conditions can cause material properties to shift from the values stated in the information.

COMPARISON GUIDE Frost LED Vinyl Lens Materials vs. PolyOne makes no warranties or guarantees respecting suitability of either PolyOne’s products or the information for your process or end-use application. Find out more about the full line of Resilience LS family of rigid vinyl polymers for clear and diffuse lens materials.

Van Hulle Mark Frost Global Specialty Engineered Materials Craig M. Nikrant PolyOne Distribution Kurt C. Innovation and services provide differentiation and competitive advantage • Favorable megatrends align with PolyOne strengths The New PolyOne: A Specialty Growth Company Page 14 Positioned for Earnings Growth 2015 Target Rev: $5B Adj.

Způsobilost valné hromady Společnosti přijímat Rozhodnutí dle článku III. notářského zápisu byla notáři prokázána, a to zejména: ------------------------------------------------------------------- - prohlášením Předsedajícího, že valná hromada je usnášeníschopná, protože se jí v zastoupení zúčastnili všichni společníci mající celkem 100 % (sto procent) hlasů, a to: ---------------------------- a) PolyOne Belgium S.A., se sídlem rue Melville Wilson 2, 5330 Assese, Belgické království, zastoupený zmocněncem Mgr. Obchodní firma: Avient Material Solutions ČR s.r.o.---------------------------------------------- 2. Obchodní společnost Avient Material Solutions ČR s.r.o.

CASE STUDY: CONTINUOUS FILAMENT WINDING TECHNOLOGY CARBONERRO™ IMPROVES STAND UP PADDLE EXPERIENCE FOR MID-LEVEL RIDERS WITH OPTIMIZED MATERIAL AND MANUFACTURING PROCESSES To learn more, please contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit www.avient.com Recognized for putting the user experience first, Carbonerro first approached Avient with the need for a paddle shaft that would float, rather than sink, and use composites rather than aluminum to provide an improved experience for intermediate riders. And Carbonerro also needed to keep costs down to produce a more economical solution for the non-professional enthusiast.